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Displaying 1-6 of 6 results for author "Burkhardt, M. R. (Mark R.)"
Concentration of selected sulfonylurea, sulfonamide, and imidazolinone herbicides, other pesticides, and nutrients in 71 streams, 5 reservoir outflows, and 25 wells in the midwestern United States, 1998 / by W.A. Battaglin, E.T. Furlong, and M.R. Burkhardt.
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Information Services [distributor], 2001.
- 2001
- 1 Item
Item details Format Call Number Item Location Text JSF 01-501 Offsite Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of pesticides in water by Carbopak-B solid-phase extraction and high-performance liquid chromatography / by Stephen L. Werner, Mark R. Burkhardt, and Sabrina N. DeRusseau.
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Branch of Information Services [distributor], 1996.
- 1996
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of methylene blue active substances by spectrophotometry / by Mark R. Burkhardt ... [et al.].
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Earth Science Information Center, Open-File Reports Section [distributor], 1995.
- 1995
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : extraction of nitroaromatic compounds from water by polystyrene divinylbenzene cartridge and determination by high-performance liquid chromatography / by Chris E. Lindley, Mark R. Burkhardt, and Sabrina N. DeRusseau.
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : ESIC/Open-File Reports Section [distributor], 1994.
- 1994
Methods of analysis by the U.S. Geological Survey National Water Quality Laboratory [microform] : determination of nonpurgeable suspended organic carbon by wet-chemical oxidation and infrared spectrometry / by Mark R. Burkhardt ... [et al.].
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey : Information Services [distributor], 1997.
- 1997
Concentration of selected sulfonylurea, sulfonamide, and imidazolinone herbicides, other pesticides, and nutrients in 71 streams, 5 reservoir outflows, and 25 wells in the midwestern United States, 1998 [electronic resource] / by W.A. Battaglin, E.T. Furlong, and M.R. Burkhardt.
- Text
- Denver, Colo. : U.S. Dept. of the Interior, U.S. Geological Survey, 2001.
- 2001
- 1 Resource
Available Online
http://purl.access.gpo.gov/GPO/LPS104714
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